Anybody have problems with car going sideways in the water burnout. The rear of the car goes to the right. The car is perfect down the track. No pulling issure down track. Help Help

What's your chassis setup?
Tires?
Short answer is you probably need a touch of preload on the right rear.
The left rear is always loaded first by application of power.

If the car is driving straight down track I'd be looking at small ruts in the water box throwing the car to the right or have someone stop you just before that transition from Bare concrete to rubber.

car has a four link suspension system. It weigh 2140. the rear tires have been changed twice. 14x32 hoosiers. Help Help needs replys.

sometimes one front brake can roll a little and cause it

Same results in both lanes? Different tracks, has this been an ongoing problem for you everywhere you race?

Same results both lanes. Same thing different Tracks...

Does it lift the front wheels on the launch?

quote:

Originally posted by FastLane:
Does it lift the front wheels on the launch?

That is a good question, most every car will go straight with front wheels on the ground. When you start carrying wheels up a ways out then it has to be right. I like to raise wheelie bars and let it come up some and adjust preload until it goes perfectly straight with wheels up then start limiting wheelies.
Sometimes when it pulls hard in the burn out box you may have corner weights off. Or like Rusty said could be brakes.

What is your target RPM in the burn out?

I start in 1st and bump into 2nd very quick. 6500 t0 7000 the target...

quote:

Originally posted by Goob:
What's your chassis setup?
Tires?
Short answer is you probably need a touch of preload on the right rear.
The left rear is always loaded first by application of power.

^^^^ This

Anybody think burning out in 2nd gear will help.Everybody must remember the right rear of the car is going to the right... I can add preload but its already going right on the rear. help help..open for any suggestion.

It’s going right because the left is pushing the rear end to the right. More preload to the right will even it out more.

And yes, I suggest a 2nd gear burn out. But it won’t fix this issue.

This car being a 4 link, I’d first check the rear for being square in the car. On a level surface, put the car on jack stands, neutral the 4 bars and plumb bob it to the floor and measure. Check / set the pinion angle at the same time.

I’ve never started a burnout in anything but high gear. First gear is for driving in the pits and leaving the starting line imho.

Have yhou checked rollout latgely. I checked mine while back and was good. Started walking sideways on burn out, Was fun and scafed hell out of few standing too close. " difference. I dropped largest on to no air and pumped short one yo to about 40 and left them for few day. Rechecked them at 7.5 and dead nuts equal. Now when get homw I jack car up and pull vlavle stems oput and let sit till day before heading out. Extra work but hell racing not for the lazy.

Would be quick simple check and if nothing else remove it from chance of being problem.

Start the burnout in high gear..Wheelspeed will straighten the car right out.

Thanks to everyone. I am going to add preload to the right rear and start the burnouts in 2nd gear. I am also going to check the pressure on both front brakes. Thanks again to everyone for your replies.

Thanks to everyone for your replies.

When you have issues like car going sideways in the box or going left or right with wheels up you often have a problem with chassis. Could be a number of things.

I have seen cars that the 4 link or rear tires were offset to the side a little. If your rear tires are not centered even 1/2 inch or less it will drive the car opposite direction.

I would scale your car and see what you have got. If you have too much weight on one of the drive tires that tire will push harder and steer car.

Then the rear end needs to be straight in the car not just centered. It needs to point straight forward. If it is pointed to the right then the rear is going to the right.

Jack up the car, use plumb bobs and chalk lines and verify the rear end is straight and centered. Fix it then scale it.

There are some other things it could be but less and less likely. Could be a broken shock, bad hiem joint or rod end, could be bent wish bone / track locator, could be twisted frame, broken or weak spring.

I would start by verifying that the chassis is straight and centered. Then go down the list checking it all out. If the rear end has moved find out why? Damaged rod end or the hole on the mount? Loose jam nut and moving?

Also one thing to consider is there is a few tracks that have a camber in the burnout box so many of the cars do same thing. Effects door cars more because they sit there and burn out more than just roll through and hit it.